From 27600805e62f800bacf990354632eae4e487d34c Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Thu, 3 Sep 2026 10:43:25 -0500 Subject: x86/amd_node: Fix PCI device reference counting in amd_smn_init() The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the search is complete. Use the __free() cleanup macro to ensure the refcount is decremented when the temporary pointer goes out of scope. Additionally, increment the refcount when caching a root pointer. This ensures the in-use refcount is separate from the temporary search refcounting. Finally, drop the redundant "root = NULL" before the second search loop. The pci_get_class() iterator always decrements the refcount of its "from" argument, so the first loop can only fall through with "root" already NULL. Fixes: 0a4b61d9c2e4 ("x86/amd_node: Fix AMD root device caching") Closes: https://sashiko.dev/#/patchset/20260806160159.230453-1-jason.andryuk%40amd.com Reported-by: Sashiko Assisted-by: LLM Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Mario Limonciello (AMD) Cc: Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com --- drivers/mtd/hyperbus/Kconfig | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 drivers/mtd/hyperbus/Kconfig (limited to 'drivers/mtd/hyperbus/Kconfig') diff --git a/drivers/mtd/hyperbus/Kconfig b/drivers/mtd/hyperbus/Kconfig new file mode 100644 index 000000000..30ffc4c16 --- /dev/null +++ b/drivers/mtd/hyperbus/Kconfig @@ -0,0 +1,32 @@ +menuconfig MTD_HYPERBUS + tristate "HyperBus support" + depends on HAS_IOMEM + select MTD_CFI + select MTD_MAP_BANK_WIDTH_2 + select MTD_CFI_AMDSTD + select MTD_COMPLEX_MAPPINGS + help + This is the framework for the HyperBus which can be used by + the HyperBus Controller driver to communicate with + HyperFlash. See Cypress HyperBus specification for more + details + +if MTD_HYPERBUS + +config HBMC_AM654 + tristate "HyperBus controller driver for AM65x SoC" + depends on ARCH_K3 || COMPILE_TEST + select MULTIPLEXER + imply MUX_MMIO + help + This is the driver for HyperBus controller on TI's AM65x and + other SoCs + +config RPCIF_HYPERBUS + tristate "Renesas RPC-IF HyperBus driver" + depends on RENESAS_RPCIF + depends on MTD_CFI_BE_BYTE_SWAP + help + This option includes Renesas RPC-IF HyperBus support. + +endif # MTD_HYPERBUS -- cgit v1.3.1